CN205351367U - Get rid of clean cigarette system of power plant's chimney white plume - Google Patents
Get rid of clean cigarette system of power plant's chimney white plume Download PDFInfo
- Publication number
- CN205351367U CN205351367U CN201521079008.8U CN201521079008U CN205351367U CN 205351367 U CN205351367 U CN 205351367U CN 201521079008 U CN201521079008 U CN 201521079008U CN 205351367 U CN205351367 U CN 205351367U
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- Prior art keywords
- connects
- chimney
- heater
- wet
- white plume
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- 235000019504 cigarettes Nutrition 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 230000008676 import Effects 0.000 claims description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 23
- 239000003546 flue gas Substances 0.000 abstract description 23
- 238000000034 method Methods 0.000 abstract description 12
- 230000008569 process Effects 0.000 abstract description 11
- 238000006477 desulfuration reaction Methods 0.000 abstract description 9
- 230000023556 desulfurization Effects 0.000 abstract description 8
- 238000009792 diffusion process Methods 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 230000004438 eyesight Effects 0.000 abstract description 3
- 239000003517 fume Substances 0.000 abstract description 3
- 239000000428 dust Substances 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 239000012717 electrostatic precipitator Substances 0.000 abstract 3
- 239000007789 gas Substances 0.000 description 9
- 238000005260 corrosion Methods 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 5
- 230000003009 desulfurizing effect Effects 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000006392 deoxygenation reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 239000004071 soot Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
The utility model provides a get rid of clean cigarette system of power plant's chimney white plume, it can get rid of chimney white plume effectively, satisfies the requirement that the diffusion was discharged in the environmental protection, has avoided the corruption of chimney, has eliminated the bad impression of people's visions simultaneously to eliminated the misgivings of people's fume emissions, it includes air heater, and the dust remover is connected air heater, the draught fan is connected air heater, the wet flue gas desulfurization device is connected the draught fan, wet process electrostatic precipitator connects the wet flue gas desulfurization device, wet process electrostatic precipitator connects the chimney, its characterized in that: wet process electrostatic precipitator with be provided with clean flue gas heating device between the chimney.
Description
Technical field
This utility model relates to the technical field of smoke processing system, is specially a kind of clean cigarette system removing chimney of electric plant white plume.
Background technology
Increasingly strict along with environmental requirement; in July, 2011; Environmental Protection Department, State Administration for Quality Supervision and Inspection and Quarantine have issued " fossil-fuel power plant atmospheric pollutant emission standard " (GB13223-2011), it is desirable to key area fired power generating unit discharge standard is: NOx emission is less than 100mg/Nm3, SO2Discharge is less than 50mg/Nm3, soot emissions are less than 20mg/Nm3.In JIUYUE, 2014, three ministries and commissions of country print and distribute " coal electricity energy-saving and emission-reduction upgrading and transformation action plan (2014-2020) ", action plan requirement, the newly-built Thermal generation unit Air Pollutant Emission concentration in eastern region basically reaches discharge of gas turbine limit value, it may be assumed that NOx emission is less than 50mg/Nm3, SO2Discharge is less than 35mg/Nm3, soot emissions are less than 5mg/Nm3。
Environmental requirement for increasingly stringent, for reaching minimum discharge purpose, power plant generally takes following process route: low nitrogen burning+SCR denitration+cleaner unit+wet desulphurization device (FGD)+wet electric dust-removing (WESP), and this is the mainstream technology route that current power plant takes.Because GGH easily leaks, desulfurizer generally all eliminates GGH.Boiler is in actual motion, and flue gas is after wet desulphurization+wet electric dust-removing, and cigarette temperature is at about 50 DEG C, and throat place flue gas quickly forms white plume due to water recovery.
The existence of throat place white plume, can serve problem by band: on the one hand, although flue gas processes through desulfurization, but also has part SO after all2And SO3Existing, chimney inlet flue gas temperature only has about 50 DEG C, lower than acid dew-point temperature, chimney can be caused corrosion；On the other hand, it is impossible to meet the requirement of environment protection emission diffusion, namely occur that at throat place white plume can destroy view, affects visual experience, bring a lot of misgivings to the masses living in periphery, adversely affect.
Summary of the invention
For the problems referred to above, this utility model provides a kind of clean cigarette system removing chimney of electric plant white plume, it can remove chimney white plume effectively, meet the requirement of environment protection emission diffusion, avoid the corrosion of chimney, eliminate the bad impression of people's vision, thus eliminating the misgivings of people's fume emission simultaneously.
The technical solution adopted in the utility model is such, a kind of clean cigarette system removing chimney of electric plant white plume, it includes air preheater, cleaner unit connects described air preheater, and air-introduced machine connects described air preheater, and wet desulphurization device connects described air-introduced machine, Wet-electric duster connects described wet desulphurization device, described Wet-electric duster connects chimney, it is characterised in that:, it is provided with neat stress heater between described Wet-electric duster and described chimney.
It is further characterized by between described chimney and described neat stress heater and is provided with booster fan；
Neat stress heater includes neat stress heater, boiler connects steam turbine, steam turbine connects cryophorus, cryophorus connects low-pressure heater by condensate pump, low-pressure heater connects oxygen-eliminating device, and oxygen-eliminating device connects high-pressure heater by feed pump, and high-pressure heater connects boiler, forming thermal cycle, neat stress heater connects oxygen-eliminating device and low-pressure heater respectively；Described oxygen-eliminating device connects make-up water device；
Described neat stress heater includes gas approach, exhanst gas outlet and heat exchanger tube, described gas approach connects described Wet-electric duster, described exhanst gas outlet connects described chimney, and described heat exchanger tube import connects described oxygen-eliminating device, and the outlet of described heat exchanger tube connects described low-pressure heater；
Described heat exchanger tube is light pipe or fin type tube bank；The tube bank of described fin type is spiral finned tube or H type extended surface tube.
In said system of the present utility model, owing to being provided with neat stress heater between Wet-electric duster and chimney, flue gas after being processed by desulfurization is through neat stress heating devices heat, effectively remove chimney white plume, meet the requirement of environment protection emission diffusion, avoid the corrosion of chimney, eliminate the bad impression of people's vision simultaneously, thus eliminating the misgivings of people's fume emission.
Accompanying drawing explanation
Fig. 1 is the clean cigarette system schematic that this utility model removes chimney of electric plant white plume；
Fig. 2 is neat stress heater schematic diagram.
Detailed description of the invention
See Fig. 1, Fig. 2, a kind of clean cigarette system removing chimney of electric plant white plume, it includes air preheater, cleaner unit connects air preheater, air-introduced machine connects air preheater, wet desulphurization device connects air-introduced machine, Wet-electric duster connects wet desulphurization device, Wet-electric duster connects chimney, neat stress heater it is provided with between Wet-electric duster and chimney, it is provided with booster fan between chimney and neat stress heater, flue gas process flow process is that boiler flue gas out is after air preheater, first pass around dry electrostatic cleaner or sack cleaner carries out dedusting, flue gas after dedusting is to air-introduced machine, arrive wet desulfurization system again, wet desulfurizing process has desulfurization method of limestone-gypsum, the ammonia process of desulfurization and magnesia FGD etc., the dust concentration that flue gas after desulfurization requires to reach minimum discharge is less than 5mg/Nm3, then to Wet-electric duster, now flue-gas temperature drops to about 50 DEG C, and in order to remove throat white plume, flue gas is after novel neat stress heater, and flue-gas temperature is heated to about 90 DEG C, then arrive smoke stack emission.
Cigarette temperature after described neat stress heater, is increased to about 90 DEG C from about 50 DEG C, mainly has the advantage that
1, chimney corrosion can effectively be alleviated, it is possible to save anticorrosion investment, and reduce maintenance load and reduce maintenance cost；
2, the requirement of environment protection emission diffusion can be met, the phenomenon of white plume will not occur due to water recovery at throat, after flue gas height opens chimney, water vapour can condense a long way off, but now flue gas can be diluted by surrounding air around, do not have significantly white plume phenomenon；
3, the preferred arrangement of system can be realized.For environmental transformation project, exerting oneself such as air-introduced machine and can not overcome resistance drop requirement, need to set up desulphurization devices, current booster fan is generally all disposed within before desulfurizing tower, in order to consider the working environment of blower fan, alleviates wet flue gas to the corrosion of blower fan and contamination problems.After adopting described neat stress heater, due to the rising of cigarette temperature, it is possible to after booster fan being placed on desulfurizing tower and neat stress heater, blower fan will not be subjected to the impact of high temperature operating conditions, due to the reduction of cigarette temperature, flue gas flow also reduces to some extent, and energy consumption is reduced.On the other hand, after adopting described neat stress heater, desulfuration absorbing tower is operated under negative pressure state, it is possible to decrease sealing structure requirement, and system is arranged and obtained optimization.
See Fig. 2, neat stress heater includes neat stress heater, boiler connects steam turbine, steam turbine connects electromotor, steam turbine connects cryophorus, cryophorus connects low-pressure heater by condensate pump, low-pressure heater connects oxygen-eliminating device, oxygen-eliminating device connects high-pressure heater by feed pump, high-pressure heater connects boiler, form thermal cycle, oxygen-eliminating device connects make-up water device, neat stress heater includes gas approach, exhanst gas outlet and heat exchanger tube, gas approach connects Wet-electric duster, exhanst gas outlet connects chimney, heat exchanger tube import connects oxygen-eliminating device, heat exchanger tube outlet connects low-pressure heater.
The neat stress heater of novel removal chimney of electric plant white plume includes boiler low-pressure heater outlet pipeline 1, neat stress heater 2, neat stress heater water outlet to oxygen-eliminating device pipeline 3, Wet-electric duster exhaust pass 4, neat stress heater outlet to the flue 5 of chimney.
Wet-electric duster exports the flue gas of about 50 DEG C and flows into neat stress heater 2 by Wet-electric duster exhaust pass 4, flue gas to about 90 DEG C in neat stress heater 2, and afterwards, flue gas enters chimney by the flue 5 of neat stress heater outlet to chimney.
The thermal source technological process of neat stress heater: the former water-steam system flow process of power plant is generally boiler feedwater and is heated into superheated steam through boiler, superheated steam flows into condenser after steam turbine power generation, it is passed to low-pressure heater through condensate pump after being condensed into water, through the water of low-pressure heater after oxygen-eliminating device deoxygenation, by feed pump and high-pressure heater, enter boiler as boiler feedwater.Draw a road hot water from low-pressure heater outlet conduit 1 now, in neat stress heater 2, hot water is after about 50 DEG C flue gas to about 90 DEG C, hot water temperature drop, at about 70 DEG C, returns to oxygen-eliminating device again through neat stress heater water outlet to oxygen-eliminating device pipeline 3 and carries out deoxygenation.
Heat exchanger tube is light pipe or fin type tube bank, and fin type tube bank can be divided into again spiral finned tube or H type extended surface tube, and fin type tube bank can be effectively improved heat exchange efficiency.
Claims (7)
1. the clean cigarette system removing chimney of electric plant white plume, it includes air preheater, cleaner unit connects described air preheater, air-introduced machine connects described air preheater, wet desulphurization device connects described air-introduced machine, Wet-electric duster connects described wet desulphurization device, and described Wet-electric duster connects chimney, it is characterised in that: it is provided with neat stress heater between described Wet-electric duster and described chimney.
2. a kind of clean cigarette system removing chimney of electric plant white plume according to claim 1, it is characterised in that: it is provided with booster fan between described chimney and described neat stress heater.
3. a kind of clean cigarette system removing chimney of electric plant white plume according to claim 1, it is characterized in that: neat stress heater includes neat stress heater, boiler connects steam turbine, described steam turbine connects cryophorus, described cryophorus connects low-pressure heater by condensate pump, described low-pressure heater connects oxygen-eliminating device, described oxygen-eliminating device connects high-pressure heater by feed pump, described high-pressure heater connects described boiler, forming thermal cycle, neat stress heater connects oxygen-eliminating device and low-pressure heater respectively.
4. a kind of clean cigarette system removing chimney of electric plant white plume according to claim 3, it is characterised in that: described oxygen-eliminating device connects make-up water device.
5. a kind of clean cigarette system removing chimney of electric plant white plume according to claim 3, it is characterized in that: described neat stress heater includes gas approach, exhanst gas outlet and heat exchanger tube, described gas approach connects described Wet-electric duster, described exhanst gas outlet connects described chimney, described heat exchanger tube import connects described oxygen-eliminating device, and the outlet of described heat exchanger tube connects described low-pressure heater.
6. a kind of clean cigarette system removing chimney of electric plant white plume according to claim 5, it is characterised in that: described heat exchanger tube is light pipe or fin type tube bank.
7. a kind of clean cigarette system removing chimney of electric plant white plume according to claim 6, it is characterised in that: the tube bank of described fin type is spiral finned tube or H type extended surface tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521079008.8U CN205351367U (en) | 2015-12-23 | 2015-12-23 | Get rid of clean cigarette system of power plant's chimney white plume |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521079008.8U CN205351367U (en) | 2015-12-23 | 2015-12-23 | Get rid of clean cigarette system of power plant's chimney white plume |
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| Publication Number | Publication Date |
|---|---|
| CN205351367U true CN205351367U (en) | 2016-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521079008.8U Expired - Fee Related CN205351367U (en) | 2015-12-23 | 2015-12-23 | Get rid of clean cigarette system of power plant's chimney white plume |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205351367U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402753A (en) * | 2015-12-23 | 2016-03-16 | 无锡华光新动力环保科技股份有限公司 | Flue gas purifying system for removing white smoke plume of power plant chimney |
| CN108679638A (en) * | 2018-05-29 | 2018-10-19 | 上海电力学院 | A kind of condensation-reheating integration plume disappears white system |
-
2015
- 2015-12-23 CN CN201521079008.8U patent/CN205351367U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402753A (en) * | 2015-12-23 | 2016-03-16 | 无锡华光新动力环保科技股份有限公司 | Flue gas purifying system for removing white smoke plume of power plant chimney |
| CN108679638A (en) * | 2018-05-29 | 2018-10-19 | 上海电力学院 | A kind of condensation-reheating integration plume disappears white system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160629 |
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| CF01 | Termination of patent right due to non-payment of annual fee |